Home / 388,981.20-582,550.20-263,643.60

Finding the Fourth Proportional to 388,981.20, 582,550.20 and 263,643.60

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Solution

The fourth proportional to 388,981.20, 582,550.20 and 263,643.60 is: 394,840.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,981.20 : 582,550.20 = 263,643.60 : x
  2. Step 2: Convert to fraction form
    388,981.20/582,550.20 = 263,643.60/x
  3. Step 3: Cross multiply
    388,981.20x = 582,550.20 × 263,643.60
  4. Step 4: Simplify right side
    388,981.20x = 153,585,631,908.72
  5. Step 5: Solve for x
    x = 153,585,631,908.72/388,981.20
  6. Step 6: Final answer
    x = 394,840.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.